Service-Oriented Modeling
Service-oriented modeling is the discipline of modeling business and software systems, for the purpose of designing and specifying service-oriented business systems within a variety of architectural styles, such as enterprise architecture, application architecture, service-oriented architecture, and cloud computing.
Any service-oriented modeling methodology typically includes a modeling language that can be employed by both the 'problem domain organization' (the Business), and 'solution domain organization' (the Information Technology Department), whose unique perspectives typically influence the 'service' development life-cycle strategy and the projects implemented using that strategy.
Service-oriented modeling typically strives to create models that provide a comprehensive view of the analysis, design, and architecture of all 'Software Entities' in an organization, which can be understood by individuals with diverse levels of business and technical understanding. Service-oriented modeling typically encourages viewing software entities as 'assets' (service-oriented assets), and refers to these assets collectively as 'services'.
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Popular approaches to service-oriented modeling
There are many different approaches that have been proposed for service modeling, including SOMA and SOMF.
Service-oriented modeling and architecture (SOMA)
IBM announced Service-Oriented Modeling and Architecture (SOMA) as the first publicly announced SOA-related methodology in 2004.[1] SOMA refers to the more general domain of service modeling necessary to design and create SOA. SOMA covers a broader scope and implements service-oriented analysis and design (SOAD) through the identification, specification and realization of services, components that realize those services (a.k.a. "service components"), and flows that can be used to compose services.
SOMA includes an analysis and design method that extends traditional object-oriented and component-based analysis and design methods to include concerns relevant to and supporting SOA. It consists of three major phases of identification, specification and realization of the three main elements of SOA, namely, services, components that realize those services (aka service components) and flows that can be used to compose services.
SOMA is an end-to-end SOA Method for the identification, specification, realization and implementation of services (including information services), components, flows (processes/composition). SOMA builds on current techniques in areas such as domain analysis, functional areas grouping, variability-oriented analysis (VOA) process modeling, component-based development, object-oriented analysis and design and use case modeling. SOMA introduces new techniques such as goal-service modeling, service model creation and a service litmus test to help determine the granularity of a service.
SOMA identifies services, component boundaries, flows, compositions, and information through complementary techniques which include domain decomposition, goal-service modeling and existing asset analysis.
SOMA Life cycle modeling activities
Service-oriented Modeling and Architecture (SOMA) consists of the phases of identification, specification, realization, implementation, deployment and management in which the fundamental building blocks of SOA are identified then refined and implemented in each phase. The fundamental building blocks of SOA consists of services, components, flows and related to them, information, policy and contracts.